Nice piece of trench art, made into a cigar ashtray. The shell was made by T. B. & C. Co. and is dated 5-3-18. The sell has the ordinance anchor hallmark and has a great patina on it. There are some other markings on it: Lot 932, R.R.A. and J.A. It is a 3 in 50 cal. and is very heavy for its size. It measures 4 1/4" across the bottom and 4" tall.